[1]JournaloftheChemicalSociety.PerkintransactionsI,1972,vol.14,p.1825-1830
[1]AustralianJournalofChemistry,1981,vol.34,p.2695-2700
[1]CollectionofCzechoslovakChemicalCommunications,1982,vol.47,p.950-960
[1]CollectionofCzechoslovakChemicalCommunications,1982,vol.47,p.950-960